CVE-2026-74455 PUBLISHED

can: peak_usb: validate uCAN receive record lengths

Assigner: Linux
Reserved: 15.08.2026 Published: 15.08.2026 Updated: 15.08.2026

In the Linux kernel, the following vulnerability has been resolved:

can: peak_usb: validate uCAN receive record lengths

pcan_usb_fd_decode_buf() walks uCAN records packed in one USB receive buffer.

Require each record to contain the fixed header for its type, and verify CAN payload bytes before copying them into the skb.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 0a25e1f4f18566b750ebd3ae995af64e23111e63 to 6067c878e38d02a3d5c43497347e143f85c9064a (excl.)
  • affected from 0a25e1f4f18566b750ebd3ae995af64e23111e63 to 2c8f08f3641a074da40acf05baa5a18ae2739260 (excl.)
  • affected from 0a25e1f4f18566b750ebd3ae995af64e23111e63 to 2427ef427bdd78d862c7c76597bfd9eda88b81f1 (excl.)
  • affected from 0a25e1f4f18566b750ebd3ae995af64e23111e63 to d9c115948c3dd5fcc2d0245cec5eb76c098503c8 (excl.)
  • affected from 0a25e1f4f18566b750ebd3ae995af64e23111e63 to 93fcab2c6968446316bbb49548848df604d6346f (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 4.0 is affected
  • unaffected from 0 to 4.0 (excl.)
  • unaffected from 6.6.151 to 6.6.* (incl.)
  • unaffected from 6.12.103 to 6.12.* (incl.)
  • unaffected from 6.18.44 to 6.18.* (incl.)
  • unaffected from 7.1.8 to 7.1.* (incl.)
  • unaffected from 7.2-rc6 to * (incl.)

References